replacement for the D300s SLR. middle spec DSLR.
Sensor: 24.2 MP DX CMOS, 3.82µ pixel pitch (same as on the D3200)
Sensor Size: 23.2 x 15.4mm
Resolution: 6,016 × 4,000
Native ISO Sensitivity: 100-6,400
Boost Low ISO Sensitivity: 50
Boost High ISO Sensitivity: 12,800-25,600
Processor: EXPEED 3
http://www.photographybay.com/2012/06/13/nikon-d400-rumored-for-fall/?awt_l=CETYw&awt_m=JvUg6g9Okv62xu